Self-heating soldering-iron.



PATBNTBD SEPT; 22, 1903.

F. E. RBNIOK. SELF HEATING SOLDERING IRON.

APPLIOATIOK 11.51: 0'01. 20. 1902 K0 MODEL.

7 EZV/ZZOI UNITED STATES Patented September 22, 1903.

PATENT Enron.

TO CHARLES G. ENO AND JAMES B. WHEATLEY,

MISSOURI.

or KANSAS CITY,

SELF-HEATING S OLDERiNG-lRON.

SPECIFICATION forming part of Letters Patent No. 739,719, dated September 22, 1903. Application filed Ooto'ber'20, 1902. Serial No. 128,049. (No model.) I

To all whom, it rim/y concern:

Be it known that I, FREDERICK E. RENIOK,

acitizen of the United States, residing at Mammoth Spring, Fulton county, Arkansas,

have invented certain new and useful Im-.

aself-heating solderingriron of this kind means for permitting the gasolene to expand after being heated and vaporized and before it is discharged from the burner.

Afurther object of the invention is to simplify and cheapen the construction of the device and to render the same more convenient in assembling the parts thereof.

Other objects of the invention will hereinafter appear, and the novel features thereof will be set forth in the claims.

In the drawings-forming part of the specification, Figure l is a side elevation of a soldering-iron constructed in accordance with my invention. Fig. 2 is a longitudinal section of the same, and Fig. 3 is an enlarged detail view of the expansion-chamber.

Like reference-numerals indicate like parts in the different views.

In the construction of my improved soldering-iron -I employ a hollow receptacle 1 for gasolene or other light hydrocarbon liquid, the same being preferably cylindrical in form and being provided with ahollow internallyscrew-threaded neck or extension 2 at its forward end. The same is also provided at its rear end with an inwardly opening check: valve and nipple 3 for the introduction of air under pressure to the inside of said receptacle. The said valve and nipple may be simi-- lar to those employed upon the well-known pneumatic bicycle-tire.

Screwed upon the neck 2 and extending forwardly therefrom is a tubular stem or shell 4, provided with side perforations 5 at intervals throughout its length, and screwed upon the forward end of the stem 4 is the soldering tip or head 6. Located within the stem 4, adjacent to the forward end of the same and adapted to be locked in place by the screw 7, i333 hollow expansion and distributing chamher 8. The same is preferably cylindrical in form and is formed with a contracted discharge-orifice 9 at its front end. This orifice constitutes a burner, the same being controlled by a needle-valve 10, whose stein extends rearwardly through the center of the hollow stem 4 and through the receptacle 1', and is provided with a handle 11, by means of which said valve may be manipulated. The said valve-stem has a screw-threaded connection with the neck 12 of the expansion-chamher 8, through which the same passes, and to prevent leakage between the neck and said valve stem a packing cap 13 is provided, which screws upon said stem and upon said neck 12 at the point of juncture of the two. Leading from the receptacle 1, communicating with the interior thereof and extending forwardly through the hollow stem 4, is a tube 14, provided for the purpose of conveying gasolene to the expansion and distributing chamber 8. The said tube passes along the side of the expansion-chamber 8, fitting within a groove 15 therein, and extends up to a point adjacent to the point of attachment of the head or tip 6 with the stem 4. It is then bent back upon itself, as shown at 16, to form a vaporizing-chamber and afterward enters the forward'end of the expansion-chamber 8.

In the operation of my improved device the receptacle 1 is partially filled with gasolene, and air under pressure is forced into said receptacle by an ordinary air-pump through the, valve 3. The needle-valve 10 is then slightly opened by turning the handle 11 thereof, and by the pressure of the air Within the receptacle 1 the gasolene is forced through the tube 14 into the expansion-chamber 8 and is discharged through the port 9 at the forward end thereof. Here the oil is ignited, and the flame is thrown out so as to impinge against the bent portion 16 of the tube 14.

5 at the forward end of the stem 4 and burns with an intense heat, serving not only to highly heat the hollow head or tip 6, into which the flame is projected, but also to continue' the vaporization of the oil in the bent portion 16 of the tube 14. The dischargeorifice 9 is located directly behind the forward end of the tube 14, and the flame therefrom must necessarily strike against said tube.

The expansion and distributing chamber 8 forms a very important part of my invention, the same providing for the thorough expansion of the vaporized oil prior to its discharge and ignition at the burner. The said chambertherefore acts as an equalizer or distributer, and as the valve 10 acts upon or controls the passage through the orifice 9, which constitutes the burner itself, it will be seen that a perfectly even and constant heat may be maintained at all times. g The perforations or openings 5 at the rear or inner end of the stem 4 provide for the free circulation of air through said stem. They therefore serve to maintain said stem 6 in a comparatively cool condition, so that the same may be used as a handle, and they also serve to prevent the transmission of any great amount of heat back to the receptacle 1, in which the main body of the gasolene is contained.

device may be used as ablow-torch for removing paint and for other analogous purposes.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with an oil-receptacle and a hollow perforated stem con nected therewith, of a tube leading from said receptacle within said stem, and bent back upon itself across said tube from one side to the. other, an expansion-chamber with which said tube communicates, having a discharge-orifice at its forward end, located in said stem directly behind the bent portion of said tube, and of greater diameter than said tube, and a valve controlling said discharge-orifice.

2. In a self-heatingsoldering-iron, the combination with an oil-receptacle, a hollow stem connected therewith having perforations therein throughout its length, and a soldering heador tip secured to the forward end of said stem, of an expansion-chamber of relatively large diameter located within said stem adjacent to the forward end thereof, the said chamber having alongitudinal groove in one side thereof and having a discharge port or orifice at its front end, means for locking said chamber within said stem, a tube of relatively small diameter leading from said receptacle within said stem, fitting within said groove, extending to a point in advance of said expansion-chamber, bent back upon itself and communicating with said expansion-chamber, and a needle-valve controlling said discharge-orifice, the stem of said valve having a screw-threaded connection with said expansion-chamber, extending through said hollow stem and through said receptacle, and having a handle on its rear end.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FREDERICK E. RENIOK.

WVitnesses:

N. J. OHA sLoR, H. N. SIMoNs. 

